Overview
Falk 1203222 is a Lifelign flex hub manufactured by Rexnord for use in G Series gear couplings. The Falk 1203222 is designed as a straight bore rough stock (RSB) flex hub for 1040G size couplings. The Lifelign® flex hubs have teeth that mate with a sleeve to transmit torque and accommodate equipment shaft misalignment. This component is engineered for reliable power transmission in industrial machinery where flexible coupling performance is essential.
Key Features
- 8.250-inch outside barrel diameter and 4.75-inch length for optimal space compatibility
- Bore range 2 1/2″ to 5 3/4″ accommodating various shaft diameters
- Rough Stock Bore (RSB) style for custom machining to fit specific shaft requirements
- Flex hub design accommodates equipment shaft misalignment with geared tooth engagement
- Steel construction for durability in demanding industrial environments
Technical Specifications
- Coupling Size: 1040G
- Maximum Speed: 3600 RPM
- Hub Diameter: 8.25 inches
- Length Through Bore: 4.75 inches
- Bore Range: 2.5 to 5.75 inches
- Material: Steel
- Bore Style: Rough Stock (RSB) – requires custom boring for application
- Type: Flex Hub (external gear teeth)
Typical Applications
Gear couplings are a universal coupling for all sorts of applications and accommodate all possible misalignments. The Falk 1203222 is commonly used in:
- Pump and motor drives requiring flexible torque transmission
- Industrial machinery with angular, parallel, or axial misalignment
- HVAC and ventilation systems
- Material handling and conveyor systems
- Compressor and fan applications
Compatibility & Replacements
Compatible With
- Falk 1040G series gear couplings (complete assemblies)
- G Series flex coupling sleeves and rigid hubs
- Industrial motor and machinery drives operating at 3600 RPM or less
- Standard 1040G coupling assemblies from Rexnord/Falk
Replaces / Drop-In Replacement For
- Other OEM 1040G flex hubs in equivalent applications
- Verify bore and application requirements before ordering to ensure proper fit
Works With
- Falk Lifelign coupling sleeves (both single and double engagement)
- Standard industrial coupling assembly configurations
- Motor and pump flange mounting systems compatible with 1040G couplings
